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Finding the Fourth Proportional to 509,787.52, 764,550.06 and 210,353.20

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Solution

The fourth proportional to 509,787.52, 764,550.06 and 210,353.20 is: 315,475.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,787.52 : 764,550.06 = 210,353.20 : x
  2. Step 2: Convert to fraction form
    509,787.52/764,550.06 = 210,353.20/x
  3. Step 3: Cross multiply
    509,787.52x = 764,550.06 × 210,353.20
  4. Step 4: Simplify right side
    509,787.52x = 160,825,551,681.19
  5. Step 5: Solve for x
    x = 160,825,551,681.19/509,787.52
  6. Step 6: Final answer
    x = 315,475.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.